Sr Software Engineer (React, JavaScript, .net)

Fiserv

Actively hiring Posted this week
Hagerstown, MD Posted 3 days ago $90,000–$127,000 / year
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At a glance

AI generated

TL;DR

As a Senior Software Engineer on the Client Services technology team, you will design and develop high-value, data-driven applications that enhance global support operations. Utilizing React and TypeScript for front-end development alongside C# and ASP.NET Core for back-end services, your role involves building robust RESTful APIs, optimizing SQL Server databases, and implementing secure coding practices. You will collaborate closely with product owners and technical analysts to deliver features from concept through release, ensuring maintainability and scalability of the codebase. Key skills include experience with modern JavaScript (ES6+), TypeScript, Entity Framework Core, Docker, and cloud deployment across Azure or AWS environments, as well as a strong background in full-stack web application development and enterprise-grade security practices.

Skills

React TypeScript C# ASP.NET Core SQL Server T-SQL RESTful APIs Git CI/CD Docker Azure AWS OAuth2 JWT Visual Studio VS Code SSMS Azure DevOps GitHub Actions IIS Entity Framework Core

What you'll do

  • Design and develop responsive web applications using React and ASP.NET Core.
  • Build and maintain robust RESTful APIs and backend microservices in C#.
  • Translate complex business needs into technical solutions with UI workflows and API contracts.
  • Develop and optimize SQL Server database schemas and T-SQL queries for high-volume data use cases.
  • Implement enterprise-grade security practices, including secure coding patterns and authentication protocols.

What we're looking for

  • 5+ years of professional experience designing and delivering full-stack web applications.
  • Proficient in C# with modern .NET development (ASP.NET Core) and React utilizing TypeScript.
  • Strong database expertise with SQL Server, including data modeling and schema optimization.
  • Experience building secure REST APIs and consuming them for client-device interactions.
  • Familiarity with Git-based version control, CI/CD concepts, and automated testing practices.

Employer

About Fiserv

Fiserv is a global leader in financial services technology, providing core banking platforms, payment processing, digital banking, and merchant acquiring solutions to financial institutions and businesses. Industry: Financial Technology & Payments

Fiserv currently has 70 open roles on FindRole.

Listed pay typically runs $110,000–$186,000 across 47 roles with salary data.

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